public void add() {
Integer pageNumber = getIntParameter(PAGE_NUMBER_KEY);
if (!IntegerUtils.isPositive(pageNumber)) {
pageNumber = 1;
}
long itemCount = factory.getCount();
int pageCount = PaginationUtils.getPageCount(itemCount, pageSize);
if (pageNumber > pageCount) {
pageNumber = pageCount;
}
String pageUrl = request.getRequestURI();
List<String> parameters = new ArrayList<>();
@SuppressWarnings("unchecked")
Set<Map.Entry<String, Object>> entries = request.getParameterMap().entrySet();
for (Map.Entry<String, Object> entry : entries) {
if (entry.getKey().equals(PAGE_NUMBER_KEY)) {
continue;
}
Object value = entry.getValue();
if (value == null) {
continue;
}
if (value instanceof String) {
parameters.add(entry.getKey() + "=" + UrlUtils.encode((String) value));
} else if (value.getClass().isArray()) {
String[] strings = (String[]) value;
if (strings.length > 0) {
parameters.add(entry.getKey() + "=" + UrlUtils.encode(strings[0]));
}
}
}
if (parameters.size() > 0) {
pageUrl += "?" + Joiner.on("&").join(parameters);
}
List<PaginationAnchor> anchors =
PaginationAnchor.create(pageUrl, pageCount, visibleButtonSize, pageNumber);
request.setAttribute("paginationAnchors", anchors);
request.setAttribute("rowStartIndex", (pageNumber - 1) * pageSize + 1);
request.setAttribute(rowItemsName, factory.getInstances((pageNumber - 1) * pageSize, pageSize));
request.setAttribute(rowItemCountName, itemCount);
}
private <T> T callRecurly(
final AsyncHttpClient.BoundRequestBuilder builder, @Nullable final Class<T> clazz)
throws IOException, ExecutionException, InterruptedException {
final Response response =
builder
.addHeader("Authorization", "Basic " + key)
.addHeader("Accept", "application/xml")
.addHeader("Content-Type", "application/xml; charset=utf-8")
.execute()
.get();
final InputStream in = response.getResponseBodyAsStream();
try {
final String payload = convertStreamToString(in);
if (debug()) {
log.info("Msg from Recurly API :: {}", payload);
}
// Handle errors payload
if (response.getStatusCode() >= 300) {
log.warn("Recurly error whilst calling: {}\n{}", response.getUri(), payload);
if (response.getStatusCode() == 422) {
final Errors errors;
try {
errors = xmlMapper.readValue(payload, Errors.class);
} catch (Exception e) {
// 422 is returned for transaction errors (see
// http://docs.recurly.com/api/transactions/error-codes)
// as well as bad input payloads
log.debug("Unable to extract error", e);
return null;
}
throw new TransactionErrorException(errors);
} else {
RecurlyAPIError recurlyError = null;
try {
recurlyError = xmlMapper.readValue(payload, RecurlyAPIError.class);
} catch (Exception e) {
log.debug("Unable to extract error", e);
}
throw new RecurlyAPIException(recurlyError);
}
}
if (clazz == null) {
return null;
}
final T obj = xmlMapper.readValue(payload, clazz);
if (obj instanceof RecurlyObject) {
((RecurlyObject) obj).setRecurlyClient(this);
} else if (obj instanceof RecurlyObjects) {
final RecurlyObjects recurlyObjects = (RecurlyObjects) obj;
recurlyObjects.setRecurlyClient(this);
// Set the RecurlyClient on all objects for later use
for (final Object object : recurlyObjects) {
((RecurlyObject) object).setRecurlyClient(this);
}
// Set the total number of records
final String xRecords = response.getHeader(X_RECORDS_HEADER_NAME);
if (xRecords != null) {
recurlyObjects.setNbRecords(Integer.valueOf(xRecords));
}
// Set links for pagination
final String linkHeader = response.getHeader(LINK_HEADER_NAME);
if (linkHeader != null) {
final String[] links = PaginationUtils.getLinks(linkHeader);
recurlyObjects.setStartUrl(links[0]);
recurlyObjects.setPrevUrl(links[1]);
recurlyObjects.setNextUrl(links[2]);
}
}
return obj;
} finally {
closeStream(in);
}
}